The reason I can think off that could of done this is because I did it in direct sunlight which did seem to make it hard to rub off. It says to allow to dry to a haze but should I rub off straight away?

What is a clay bar?
What is this dishwashing soap, is it washing up liquid?
How would I apply these?

I gave the car a wash again today and the white spots are slowly coming off. It still looks like the paint work needs a real deep clean/scrub. I want to give the wax another go but fell the body work should be spotless before doing it.

THE TEMPTATION OF USING AN AUTOMATIC CAR WASH IS GETTING UNBEARABLE.